The Jewel of Amathaunta

Renna Hills is certain she is as ordinary as you can be as an 11 year old with white and blue hair, but what happens when she receives a letter from Hogwarts and later discovers that she is not merely a witch, but also a rare elemental mage. Set at same time as HP and the philosophers stone. No pairings that I know of yet. May contain long chapters and an even longer story.